I am attempting to learn how to use the add, remove, update features of datasources. Below is the code I am using and I am getting an error. Can anyone point me in the right direction?
My DataSource XML:
My test code to add the row:
The exception is not very descriptive.
"(TypeError) _gwt$exception: <skipped>: Cannot read property 'getOrCreateJsObj' of null"
I understand it is saying there is a null point somewhere, but I do not see what I have done wrong.
My DataSource XML:
Code:
<DataSource serverType="sql" autoDeriveSchema="true" dbName="CSODatabaseLOCAL"
ID="UserViews"
schema="csorepository"
tableName="user_views">
<fields>
<field name="viewId" nativeName="view_id" type="int" primaryKey="true"/>
<field name="userId" nativeName="user_id" type="int"/>
<field name="cityId" nativeName="city_id" type="int"/>
<field name="viewName" nativeName="view_name" type="text" length="64"/>
<field name="viewSensors" nativeName="view_sensors" type="text" length="255"/>
<field name="viewStartDate" nativeName="view_start_date" type="datetime"/>
<field name="viewEndDate" nativeName="view_end_date" type="datetime"/>
<field name="isDefault" nativeName="is_default" type="bool" length="32"/>
</fields>
<operationBinding operationType="update" requires="false" />
<operationBinding operationType="add" requires="" />
<operationBinding operationType="remove" operationId="removeUserView" >
<whereClause>view_id = $criteria.viewId</whereClause>
</operationBinding>
<operationBinding operationType="fetch" operationId="fetchUserViews">
<whereClause>user_id = $criteria.userId AND city_id = $criteria.cityId</whereClause>
</operationBinding>
</DataSource>Code:
final DataSource userViewDs = DataSource.get("UserViews");
try {
Record r = new Record();
r.setAttribute("userId", 111);
r.setAttribute("cityId", 222);
r.setAttribute("viewName", "My first view");
r.setAttribute("viewSensors", "sens1,sens2");
r.setAttribute("isDefault", false);
userViewDs.addData(r);
} catch (Exception ex) {
com.google.gwt.user.client.Window.alert(ex.getMessage());
}"(TypeError) _gwt$exception: <skipped>: Cannot read property 'getOrCreateJsObj' of null"
I understand it is saying there is a null point somewhere, but I do not see what I have done wrong.